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|  MIL-T-62319C
selector. The transmission shall be provided with an SAE J704 power takeoff opening. The
input torque capacity of the transmission shall be at least equal to the maximum torque delivered
by the engine.
3.4.5.4 Power takeoff. When a power takeoff is furnished, it shall be of a rated capacity to
operate powered equipment. Controls to operate the power takeoff shall be located in the truck
cab accessible to the seated driver. A caution plate or decal reading "DO NOT OPERATE
VEHICLE AT HIGHWAY SPEEDS WITH POWER TAKEOFF ENGAGED" shall be provided
and installed so as to be readily visible to the seated driver (see 3.1.1.14).
3.4.6 Driveline components. Driveline components shall be adequate to transmit the
maximum delivered torque of the engine, as developed through the maximum gear train
reduction.
3.4.7 Frame. The chassis frame shall be the manufacturer's standard for the class and model
of the vehicle furnished. Chassis frame rails shall not project beyond the rear end of the body.
3.4.8 Suspension. The vehicle shall be equipped with a suspension system, with components
having a rated capacity at least equal to the load imposed on each member measured at the
ground, with the vehicle loaded to specified GVW. When suspension is rated at the spring pads,
unsprung weight shall be deducted. The vehicle shall be equipped with hydraulic, double-acting
shock absorbers at the front wheels.
* 3.4.9 Axles. Axle ratings shall be at least equal to the load imposed on each axle, measured
at the ground, with the vehicle loaded to specified GVW. When specified (see 6.2), the wheel
bearings and axle spindles shall be oil lubricated. On nondriving axles, the hubcaps shall have a
window for visual determination of oil level. Provisions for venting or withstanding internal
pressure build-up and for replenishing the oil supply shall be provided.
3.4.9.1 Two-speed axle. When specified for 4x2 model vehicles (see 6.2), a two-speed axle
shall be furnished, equipped with electric, vacuum, or air shift and provided with ratios which
will permit proper gear splitting. The gear ratio shall provide the performance specified in 3.3.1
through 3.3.1.3.
3.4.9.2 Traction control. The vehicle shall be furnished with a traction control on the rear
axle. The traction control shall actuate automatically to ensure that power is transmitted to the
wheels having traction when the opposite wheel loses traction. Maximum traction capabilities
shall be maintained at all times under each drive wheel for the life of the vehicle.
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